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Help understanding passing variables between pages

Oct 17, 2013 at 11:31 AM
Edited Oct 17, 2013 at 11:32 AM
Using codebehind I can pass the parent window to the child using the code below
//Parent Window
new LoginWindow(this).ShowDialog();

//Child Window
private void UserControl_Loaded(object sender, RoutedEventArgs e)
    m_parentWindow = Window.GetWindow(this);
However, I'm not sure how this should work using just mui XAML? For instance if I have
        <mui:LinkGroup DisplayName="main" >
                <mui:Link DisplayName="Data" Source="/Pages/MainStart.xaml" />
                <mui:Link DisplayName="settings" Source="/Pages/MainSettings.xaml" />
Then in /Pages/MainStart.xaml.cs I can get the main window by using
        private MainWindow m_mainform;

        public MainStart()
            m_mainform = (MainWindow)Application.Current.MainWindow;
but this seems a bit wrong. What is the correct method in mui to access parent windows. Can this be done through XAML only?